import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* Layout */
/* 包括 左边侧边栏 sidebar + 头部导航组件 Navbar + 中间的主体内容  AppMain.vue 二级路由*/
import Layout from '@/layout'

/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed
 */

// import Demo from './/xxx'
// {
//   path: '/',
//   component: Demo
// }
// 之前的这种写法, 是直接加载的
// 缺点: 将来一旦用户访问页面, 代码构建完成, 第一时间把所有的组件都加载进来,
//       本身就是单页面应用, 首屏加载就比较慢 -> 不利于首屏的渲染的速度

// 路由懒加载: 前端优化的细节点 -> 减少了首屏的渲染时间 -> 如果说用户打开界面, 加载的是首页,
// 只会把首页对应的组件加载进来， 其他的不会加载

// {
//   path: '/login',
//   component: () => import('@/views/login/index'),
//   hidden: true
// },
// 审批模块
import approvalsRouter from './modules/approvals'
import departmentsRouter from './modules/departments'
import employeesRouter from './modules/employees'
import permissionRouter from './modules/permission'
import attendancesRouter from './modules/attendances'
import salarysRouter from './modules/salarys'
import settingRouter from './modules/setting'
import socialRouter from './modules/social'
// 动态路由
export const asyncRoutes = [
  departmentsRouter, // 组织架构
  settingRouter, // 公司设置
  employeesRouter, // 员工
  permissionRouter, // 权限管理
  socialRouter, // 社保
  attendancesRouter, // 考勤
  salarysRouter, // 工资
  approvalsRouter // 审批
]
// 静态路由
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    hidden: true
  },
  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard', // localhost:8080 -> 8080/dashboard
    children: [{
      path: 'dashboard',
      name: 'Dashboard',
      component: () => import('@/views/dashboard/index'), // 默认展示的二级路由的组件
      meta: { title: '首页', icon: 'dashboard' }
    }]
  },
  //
  {
    path: '/import',
    component: Layout,
    hidden: true,
    children: [
      {
        path: '',
        name: 'import',
        component: () => import('@/views/import')
      }
    ]
  },
  // 404 page must be placed at the end !!!
  { path: '*', redirect: '/404', hidden: true }
]

const createRouter = () => new Router({
  // mode: 'history', // require service support
  // 滚动行为
  scrollBehavior: () => ({ y: 0 }),
  // 不是特别规范, 临时合并 => 将来一定会做权限控制
  routes: [...constantRoutes, ...asyncRoutes] // 静态路由和动态路由合并
})

const router = createRouter()

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}

export default router
